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36.
1. You take the coefficient of x : = 12
2. Halve it : = 6
3. Then square it : = 36
4. Add it.
This gives x2 + 12x + 36 = (x + 6)2
The above method only works if the coefficient of x2 is 1. If it is not then the processs is slightly more complicated.
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How do you solve x squared plus 12x?
Factor. X^2 + 12X X(X + 12) = 0 X = 0 ------------- X + 12 = 0 X = - 12 --------------
Factorization of 4x squared plus 12x plus 5?
The factors of 5 are 1 and 5. 12 = 2 x 5 + 2 x 1, therefore: 4x2 +12x +5 = (2x + 1)(2x + 5)
What number must you add to complete the square x2 plus 12x equals 40?
You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.
What is the answer to completing the square to x2 plus 12x-11?
x2 + 12x - 11 = x2 + 12x + (12/2)2 - (12/2)2 - 11 = (x + 6)2 - 47
How do you factor -12x2 plus 28x -15?
what is -12X squared +28X - 15? i figured it out myself. its (-6X + 5)(2X - 3).
What is negative 4x squared plus 12x squared?
8x squared
What number must be added to complete the square of x SQUARED plus 12x equals -3?
9
How do you complete the square x squared plus 12x equals 5?
x^2 + 12x = 5 x^2 + 12x + __ = 5 + __ x^2 + 12x + 36 = 5 + 36 (The 36 I got from taking half of 12 and then squaring that number (which is 6).) (x + 6)^2 = 41 x + 6 = (the square root of 41) x = (the square root of 41) - 6. Hope that helped :)
4x squared plus 12x?
4x2+12x = 4x(x+3) when factored
What is the answer to x squared plus 12x?
It is x^2 + 12x or x(x + 12).
What is 5x plus 7x?
12x and then the squared. (the little two)
How can you rewrite equation x squared plus 12x plus 5 equals 3?
x2+12x+5 = 3 x2+12x+5-3 = 0 x2+12x+2 = 0
How do you factor 9x squared plus 12x plus 4 - y squared?
(3x - y+ 2)(3x + y + 2)
What number is used to complete the square for the equation x squared minus twelve x equal zero?
x2 - 12x + 36 = (x - 6)2
9x2 plus 12x plus 4 factored in decending order?
9x2...I guess that means 9x squared ? The problem: 9x(squared)+12x+4 Here's the answer: (3x+2)(3x+2) or even more simplified: (3x+2) squared
4x squared plus 12x minus 40 divided by 4x plus 20?
x - 2
How do you factor 6X squared plus 12X plus 6?
6(x + 1)(x + 1)
